Vacuum-cleaner.



J. W. SMITH.

VACUUM CLEANER.

APPLICATION FILED mm; 29, 1909.

1,077,008. Patented 001;. 28, 1913.

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I; W. SMITH.

- VACUUM CLEANER.

APPLICATION FILED JUNEZQ, 1909.

77 00 Patented 001;. 28, 1913.

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J. w. SMITH.

VACUUM CLEANER.

APPLICATION FILED JUNE 29,1909.

1,077,008 Patented Oct. 28, 1913.

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UNITED STATES PATENT OFFICE.

JOHN W. SMITH, OF CHICAGO, ILLINOIS, ASSIGNOB, T0 HOWARD SMALL AND CHARLES A. DUBEN, BOTH 0F PHILADELPHIA, PENNSYLVANIA.

VACUUM-CLEANER.

Specification of Letters Patent.

Patented Oct. 28, 1913.

A Application medium: 29, 1909. Serial No. 505,058.

To all whom it may concern:

Be it known that I, JOHN W. SMITH, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Vacuum-Cleaners, of which the following is a specification.

My invention relates to pneumatic cleaners of the vacuum type and the object there of is to provide a simple, efiicient and reliable device of this character and one which moreover is not only compact in construction and arrangement but capable of being readily assembled and disassembled. Other novel and advantageousfeatures in my construction of cleaner will be apparent from the description hereinafter given.

In the drawings, Figure 1 is a vertical section of a cleaner embodying my invention; Fig. 2 another vertical section of such cleaner but taken on a line at right angles to the section of Fi 1; Fig. 3 an elevation on a smaller scale 0 the cleaner; and Fig. 1 an elevation of the unit construction of base section, motor and pump.

Referring to the present embodiment of my invention as shown in the drawings, my device or machine comprises essentially a casing which is divided by means of a motor-operated pump mechanism into two compartments, an inlet or vacuum compartment and an outlet or compression compartment and having a base section on which are mounted the pump mechanism and the actuating motor, as well as the electric switch and wiring for the motor, the motor being located in the present instance'in the compression compartment. As shown and by preference, the base section and the pump mechanism and motor constitute a unit structure to which the casing is attached and from which it may be readily removed. I do not herein claim the construction of the pump mechanism nor'the motor mechanism therefor, inasmuch as I have made the same the subject matter of United States applications heretofore filed by me.

Referring to the construction herein shown, the casing 1 which maybe of any suitable shape and dimensions is closed at its top by a removable cover 2 and is closed at its lower end by a bottom section in the form of a partial casing 3 on which said casing l rests and whichsupports the unit construction of pump and motor as hereinafter more particularly explained.

The top cover 2 which is provided with the usual handle 4 used by me in my type of machines is clamped in the ordinary wa bv means of the swing bolts 5 and in suc clamping of the cover the'dust bag 6 which is placed in that portion of the casing above the pump which constitutes the vacuum chamber is likewise clamped or held in place. As shown this dust bag is removably secured at its upper end to a flanged ring 7 between whose horizontal flange and a similar flange of a ring 8 on the casing 1 is interposed a packing ring or gasket 9. Between the top cover 2 and said horizontal flange ofthe dust bag ring? is interposed a ring or gasket 10, all as clearly indicated in Figs. 2, and 3. In practice and by preference I also employ a dust filter 11 of felt or the like whose upper end is held distended in suitable manner as by means of a spring ring 1?. bearing against the inner walls of the vacuum compartment and thereby holding the filter in place at any desired position vertically.

As hereinbefore stated, the pump mechanism divides the interior of the casing 1 into two compartments, the upper one of which represents the vacuum compartment 13 and the lower one of which represents the outlet or compression compartment 14. As is the usual practice the vacuum compartment communicates with an extension casing 15 adapt-ed to be connected with the hose'at 15 and provided with the usual observation glass 17, while the compression compartment is provided with a suitable discharge or exhaust opening 18 which is here located in the bottom or base section 3.-

It is sometimes desirable to employ the blast issulng from the exhaust opening for various purposes where an air nozzle is employed and it is common in this .art andwell known to supply a hose and nozzle for such uses. it is desirable to locate the exhaust opening as near the bottom as possible as in that case the cleaner with the hose attached .is

much more stable and less likely to be upset.

Under such circumstances.

pulsation chamber 20, an inlet valve 21, an

' tion and in fact the entire base section motor and pump represent a unit, to which end the base section is connected to the pump mechanism by means of the verticalbolts 27 and the motor is arranged to rest upon such base section and is also connected to the pump case by means of the screws 28. The pump case is provided with an annular flange 29 between which and the ring 30, which is secured to the interior of the casing 1, is interposed a ring gasket or packing 31 in order that there may be no communication between the two compartments except through the valves.

In practice the casing is slipped over the unit construction above described, whereupon the parts will assume the position indicated in Figs. 2 and 3, after which the casing structure is secured to the unit structure by means of the screws 32 passing through the ring 30 and flange 29 of the pump case and engaging the ring 33 between which and said flange the diaphragm 24 is clamped. When the parts are in this assembled position the casing rests upon the base section of the machine and kept separated therefrom by removal of the screws 32. The casing may be fitted to the base section in any suitable manner, but as herein shown the lower end of the casing 1 does not rest directly uponthe upper edge of the base section but indirectly through the medium of a flanged ring 34 secured to the lower outer end of the casing 1. The machine is here provided with casters. 35 for convenient moving of the machine from place to place, although. the same is so light that it may be readily carried. As usual, the pump case is provided at its upper end with aguard plate 36 which is perforated and adapted to keep the dust bag and filter away from the inlet valve.

As shown in particular in Fig. 4, the base section is provided with a socket 3 in which is located the switch 37 for governing the current to the motor through the leads 38 and 39 from the supply cable 40 having a suitable connecting socket i1 for connection with a source of electricity. The switch and wiring for the electric motor is thus mounted in the base section, so that the same need not be disconnected or disturbed when the casing is lifted off the base section in the manner explained.

It is evident from the foregoing that my machine as thus constructed and arranged is not only very compact and of unit form but is capable of ready assembling and disassembling or for partial dismantling for examination or repair.

I claim:

1. In a vacuum cleaner, the combination of a casing, a base section for said casing, pump mechanism, a motor for operating the same and interposed between the base section and the pump mechanism, and a ring within the casing to which the pump mechanism is secured, the pump mechanism, mo-

tor and base section constituting a unit structure; substantially as described.

2. In a vacuum cleaner, the combination of a casing, a base section for said casing, pump mechanism, a motor for operating the same and interposed between the base section and the pump mechanism, the pump mechanism, motor and base section constituting a unit structure, a ring within the casing to which the pump mechanism 18 secured, and a gasket between said ring and pump mechanism; substantially as described.

3. In a vacuum cleaner, the combination of a base'section, a motor and pump mounted thereon one above the other, a casing section engaging the base section and forming a close joint therewith and also formmga close joint with the pump whereby said casing is divided by the pump into two chambers.

4. In a vacuum cleaner, the combination of a base section, a motor mounted thereon, a pump also mounted on the base section and above the motor, a casing section engaging the base section and forming a close joint therewith and also forming a close joint with the pump whereby said casing is divided by the pump into two chambers.

55. In a vacuum cleaner, the combination of a base section, a motor and pump mounted thereon one above the other, a casing section engaging the base section and forming a close joint therewith and likewise en- 

